I noticed this last week when doing the suspension and to be honest I never came across this before.

There are several stacks of small stick on weights on both of my calipers.

To be honest it seems like a band-aid solution to something. Reason is I will have my calipers repainted and wonder what will happen if I remove these weights.

Something else I noticed on lots of these cars with the OEM 20' wheels. They take ALOT of WHEEL WEIGHTS to balance.

Wonder why? Well thats because they are CAST in CHINA. SO I can say the poor castings create lots of irregularities to require all these weights. I also wonder if thats why the front calipers have weights on them as well.

None of my mechanic friends had an answer to the weight on caliper discovery except they said maybe the assembly is so off that under hard braking it might cause vibration into the steering wheel.

This was brought up and addressed a few months ago. Can't remember the exact outcome but it was basically a vibration issue with the earlier Brembo brake calipers and the weights were a temporary fix. You may be better off asking your dealer if there is a permanent fix available.

Happy weekend!
Sorry to resurrect this old thread.
I took my Camaro to the shop Friday morning to have my new powder coated Brembos installed.
My mechanic was confused when he saw the weights on my calipers.
He installed my new Brembos and did not add any weights to them.
After driving around with my new Brembos for a day, it rides smooth and there was not a single squeak.

__________________

Increasing Circle Size is not important.
Worthiness will knock at the door on it's own accord

The early camaro ss had the weights due to noise,there is replacement pads for these cars that have the weights designed onto the pads,I believe the dealer will change the pads to the new style under warranty.I would start there if they are causing a problem.